In 1792, France’s King Louis XVI went before the Convention to face charges of treason. (Louis was convicted, and executed the following month.) In 1816, Indiana became the 19th state. In 1882, Boston’s renamed Bijou Theatre, the first American playhouse to be lighted exclusively by electricity, gave its first performance, of Gilbert and Sullivan’s ”Iolanthe, Or The Peer and the Peri.” In 1928, police in Buenos Aires, Argentina, announced they had thwarted an attempt on the life of President-elect Herbert Hoover. In 1937, Italy announced it was withdrawing from the League of Nations. In 1941, Germany and Italy declared war on the United States; the U.S. responded in kind. In 1946, the United Nations International Children’s Emergency Fund (UNICEF) was established. In 1981, the U.N. Security Council chose Javier Perez de Cuellar of Peru to be the fifth secretary-general of the world body. In 1983, Pope John Paul II visited a Lutheran church in Rome, the first visit by a Roman Catholic pontiff to a Protestant church in his own diocese. In 1997, more than 150 countries agreed at a global warming conference in Kyoto, Japan, to control the Earth’s greenhouse gases.

Ten years ago: Majority Republicans on the House Judiciary Committee pushed through three articles of impeachment against President Bill Clinton over Democratic objections. The Mars Climate Orbiter blasted off on a nine-month journey to the red planet. (However, the probe disappeared in September 1999, apparently destroyed because scientists had failed to convert English measures to metric values).

Five years ago: U.S. health officials reported an early flu outbreak had hit all 50 states and was widespread in 24. A German court freed a Moroccan accused of supporting the Sept. 11 al-Qaida cell in Hamburg, saying there was new evidence he did not know about the plot. A new second home for the National Air and Space Museum opened in Chantilly, Va., some 28 miles west of the original’s home in Washington, D.C.

One year ago: Two car bombs in Algeria, including one targeting the U.N. refugee agency’s offices, killed 37 people, 17 of them U.N. employees; Al-Qaida’s self-styled North African branch claimed responsibility. The Senate Intelligence Committee took closed-door testimony from CIA Director Michael Hayden on how videotapes of terror suspect interrogations were made, then destroyed.